Strophomenata - Productida - Aulostegidae

Full reference: G. A. Cooper and R. E. Grant. 1975. Permian Brachiopods of West Texas, III. Smithsonian Contributions to Paleobiology 19:795-1921

Belongs to Chonosteges according to S. Z. Shen et al. 2011

Sister taxa: Chonosteges costellatus, Chonosteges limbatus, Chonosteges magnicostatus, Chonosteges matutinus, Chonosteges multicostatus, Chonosteges pulcher, Chonosteges thailandica

Type specimen: USNM 124133b, a shell (Articulated shell)

Ecology: stationary low-level epifaunal suspension feeder

Average measurements (in mm): shell 10.4 x 11.9, valve 9.99 x 10.78